science

Le Monnier (crater)

Le Monnier (crater) is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Le Monnier (crater) rather than just read about it. In short: Le Monnier is the remnant of a lunar impact crater that has been partly inundated by lava flows. It was named after French astronomer Pierre Charles Le Monnier.

Key takeaways

Le Monnier (crater) belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Le Monnier (crater) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Le Monnier (crater) from memory before moving on to harder problems.

Reference excerpt

Le Monnier is the remnant of a lunar impact crater that has been partly inundated by lava flows. It was named after French astronomer Pierre Charles Le Monnier. It is located on the eastern edge of Mare Serenitatis, and the western part of the rim is missing so that it now forms a large bay. To the north is the crater Chacornac. The interior of this formation is relatively flat and smooth, with no significant craterlets to mark the surface. The outer rim is battered, worn, and notched with past impacts. Only slight wrinkle ridges now mark where the western rim once lay. The landing site of the Luna 21 space probe is located near the southern rim of Le Monnier. Lunokhod 2, a robotic roving vehicle deposited on the surface by Luna 21, covered a distance of 37 kilometers across the crater floor. It also surveyed the southern edge of the crater rim.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Le Monnier.

The following craters have been renamed by the IAU.

Le Monnier B — See Very (lunar crater). Le Monnier C — See Borel (crater).

References

Sources

External links

Lunokhod 2 traverse overview, path of Lunokhod 2 in southern Le Monnier crater LTO-43A4 Le Monnier — L&PI topographic map.

Illustrations

Worked examples

Example 1 — a first encounter with Le Monnier (crater)

Start with the simplest possible case. Write down what Le Monnier (crater) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Le Monnier (crater) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Le Monnier (crater) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Le Monnier (crater)

In research: Le Monnier (crater) appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Le Monnier (crater) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Le Monnier (crater) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Impact craters on the Moon, LQ12 quadrangle, so understanding it makes those chapters shorter.
In everyday life: Look for Le Monnier (crater) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Le Monnier (crater) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Le Monnier (crater) means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Le Monnier (crater) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Le Monnier (crater) in simple terms?

Le Monnier is the remnant of a lunar impact crater that has been partly inundated by lava flows. It was named after French astronomer Pierre Charles Le Monnier.

Why does Le Monnier (crater) matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Le Monnier (crater)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Le Monnier (crater).